Execution of printf with ++ operators

The above invokes undefined behaviour by referencing both ‘i’ and ‘i++’ in the argument list. It is not defined which order the arguments are evaluated. Different compilers may choose different orders. A single compiler can also choose different orders at different times.

For example below three printf statements also cause undefined behavior.

Therefore, it is not recommended to do two or more than two pre or post increment operators in the same statement.

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